Every month Proehl assembles a list of the latest patents issued to South Dakota inventors. This month's extensive list includes new corn varieties, a vehicle visor extender, a motorcycle part with a speaker, medical devices and fake tree cell tower branches.

The U.S. Patent and Trademark Office issued the following patents to South Dakota inventors in October 2018:

Patent No. 10,114,806

Title: Management of Building Plan Documents Utilizing Comments and a Correction List